W83195AR-WE

更新时间： 2024-02-24 21:36:39

品牌	Logo	应用领域
华邦 - WINBOND		时钟
页数	文件大小	规格书
10页	177K
描述
200MHZ 3-DIMM CLOCK FOR WHITNEY CHIPSET

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W83195AR-WE 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SSOP
包装说明：	SSOP,	针数：	56
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.32
其他特性：	ALSO REQUIRES 2.5V SUPPLY	JESD-30 代码：	R-PDSO-G56
JESD-609代码：	e0	长度：	18.415 mm
端子数量：	56	最高工作温度：	70 °C
最低工作温度：		最大输出时钟频率：	200.4 MHz
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：	NOT SPECIFIED	主时钟/晶体标称频率：	14.318 MHz
认证状态：	Not Qualified	座面最大高度：	2.794 mm
标称供电电压：	3.3 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7.5 mm
uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, PROCESSOR SPECIFIC

W83195AR-We

200MHZ 3-DIMM CLOCK FOR WHITNEY CHIPSET

1.0 GENERAL DESCRIPTION

The W83195AR-We is a Clock Synthesizer for Intel Solano chipset. W83195AR-We provides all

clocks required for high-speed RISC or CISC microprocessor and also provides 64 different

frequencies of CPU, SDRAM, PCI, 3V66, IOAPIC clocks frequency setting. All clocks are externally

selectable with smooth transitions.

The W83195AR-We provides I²C serial bus interface to program the registers to enable or disable

each clock outputs and provides 0.5% and 0.75% center type spread spectrum to reduce EMI.

The W83195AR-We accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.

High drive PCI and SDRAM CLOCK outputs typically provide greater than 1 V /ns slew rate into 30

pF loads. CPU CLOCK outputs typically provide better than 1 V /ns slew rate into 20 pF loads as

maintaining 50 5% duty cycle. The fixed frequency outputs as REF, 24MHz, and 48 MHz provide

better than 0.5V /ns slew rate.

2.0 PRODUCT FEATURES

2 CPU clocks

12 SDRAM clocks for 3 DIMMs

8 PCI synchronous clocks.

Optional single or mixed supply:

(VddR = VddP=VddS = Vdd48 = Vdd3 = 3.3V, VddLAPIC=VddLCPU=2.5V)

Skew form CPU to PCI clock -1 to 4 ns, center 2.6 ns

Smooth frequency switch with selections from 66.8 to 200 MHz

I²C 2-Wire serial interface and I²C read back

0.5% and 0.75% center type spread spectrum

Programmable registers to enable/stop each output and select modes

(mode as Tri-state or Normal )

Two 48 MHz pins for USB

24 MHz for super I/O

56-pin SSOP package

Publication Release Date: July 1999

Revision 0.51

- 1 -

12 3 4 5 6 7...10

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